Ctrl+Alt+A caused strange artifacts

[Anders Øyvind Urke-Sætre]

OS: Antergos
Gnome Shell: 3.26.2
Kernel: 4.14.15-1-ARCH

I had the following apps running:

- Three monitors, two workspaces on left monitor.
- Intellij IDEA on middle monitor
- Terminator split in three panes, open in a workspace not active
- Google chrome v64

I wanted to add a file to git staging in IDEA, thus pressed Alt+Ctrl+A.

Expected:
File added to git staging.

Actual:
Two small windows without content appeared in top left corner, with zsh in title.
Terminator was shown on left monitor, maximized.

Repeating the shortcut, Terminator was moved back to its workspace.

Further:
- I disabled Shift+Ctrl+Alt+A and Ctrl+Alt+A shortcuts in terminator preferences. This "solved" my problem, as I don't edit title, nor hides terminator this way, as for now.
- I did not press shift+ctrl+alt+A, so hide/show terminator should not happen, regardless of my workaround.

[Mykyta Popov (mp091689)]

I also faced with this bug... I working on ubuntu 19.10 with phpstorm. On press ctrl+alt+A I expect file added to git. But actual I see the terminator window..

Help to fix it? please. Disabling or binding another shortcut in terminator preferences does not work(